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Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Prehistoric Creatures

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4507 Prehistoric Creatures

726 pieces in 168 part and color combinations.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Dark Red 231 pieces

  • Brick 1 x 1 Dark Red Part 3005 Element 4541376 or 4209383 ×2
  • Brick 2 x 4 Dark Red Part 3001 Element 6117418 or 6057588 ×2
  • Brick Curved 6 x 1 Dark Red Part 42022 Element 6602414 or 6354021 ×8
  • Brick Sloped 33° 3 x 1 Dark Red Part 4286 Element 4650862 or 4168940 ×3
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Dark Red Part 3048c Element 4209386 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Red Part 3040b Element 4541526 or 4209500 ×6
  • Brick Sloped 45° 2 x 2 Dark Red Part 3039 Element 4609925 or 4162216 ×6
  • Brick Sloped 45° 2 x 2 Double Convex Dark Red Part 3045 Element 6546172 or 6289694 ×2
  • Brick Sloped Inverted 45° 2 x 1 Dark Red Part 3665 Element 6005399 or 4590811 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Red Part 3660 Element 6052917 or 4541512 ×2
  • Brick Special 1 x 1 Studs on 4 Sides Dark Red Part 4733 Element 4177045 ×1
  • Brick Special 1 x 1 with Headlight Dark Red Part 4070 Element 4539092 or 4183878 ×6
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Dark Red Part 41748 Element 6251599 or 4163459 ×2
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Dark Red Part 41747 Element 6251602 or 4163457 ×2
  • Brick Wedged, Sloped 4 x 2 Triple Left Dark Red Part 43710 Element 6224135 or 4541524 ×2
  • Brick Wedged, Sloped 4 x 2 Triple Right Dark Red Part 43711 Element 6224132 or 4541523 ×2
  • Minifig Neckwear Bracket [One Stud] Dark Red Part 42446 Element 4224307 ×2
  • Plate 1 x 1 Dark Red Part 3024 Element 4539114 or 4183901 ×10
  • Plate 1 x 2 Dark Red Part 3023 Element 4539097 or 4162582 ×36
  • Plate 1 x 3 Dark Red Part 3623 Element 4539076 or 4164223 ×13
  • Plate 1 x 4 Dark Red Part 3710 Element 4539061 or 4164219 ×22
  • Plate 1 x 6 Dark Red Part 3666 Element 4539062 or 4164108 ×16
  • Plate 1 x 8 Dark Red Part 3460 Element 4541507 or 4529027 ×5
  • Plate 2 x 2 Dark Red Part 3022 Element 4585479 or 4163160 ×17
  • Plate 2 x 3 Dark Red Part 3021 Element 6264030 or 4541510 ×12
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Red Part 3794a Element 4176959 ×2
  • Tile 1 x 1 with Groove Dark Red Part 3070b Element 4550169 or 4187196 ×2
  • Tile 1 x 2 with Groove Dark Red Part 3069b Element 4539090 or 4529548 ×4
  • Wedge Plate 3 x 2 Left Dark Red Part 43723 Element 6267490 or 4224297 ×9
  • Wedge Plate 3 x 2 Right Dark Red Part 43722 Element 6267492 or 4224295 ×9
  • Wedge Plate 4 x 2 Left Dark Red Part 41770 Element 6008593 or 4541367 ×10
  • Wedge Plate 4 x 2 Right Dark Red Part 41769 Element 6008595 or 4541364 ×10

Red 133 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×4
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×3
  • Brick 1 x 3 Red Part 3622 Element 362221 ×6
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Red Part 6091 Element 6184782 or 609121 ×4
  • Brick Curved 1 x 4 x 1 1/3 No Studs, Lowered Inside Support Red Part 6191 Element 6074787 or 4585963 ×1
  • Brick Curved 6 x 1 Red Part 42022 Element 4160390 ×12
  • Brick Curved Inverted 6 x 1 Red Part 42023 Element 4160406 ×5
  • Brick Sloped 33° 3 x 1 Red Part 4286 Element 428621 ×2
  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×1
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Red Part 3747a Element 374721 ×3
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Red Part 4287a ×2
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×2
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Red Part 4871 Element 487121 ×1
  • Brick Wedged, Angled 3 x 2 Left Red Part 6565 Element 6256588 or 4527765 ×8
  • Brick Wedged, Angled 3 x 2 Right Red Part 6564 Element 6256585 or 4526929 ×8
  • Brick Wedged, Angled 4 x 2 Left Red Part 41768 Element 6449915 or 6093580 ×5
  • Brick Wedged, Angled 4 x 2 Right Red Part 41767 Element 6449914 or 6093579 ×5
  • Brick Wedged, Curved 6 x 4 Triple Red Part 43712 Element 6621800 or 6409628 ×2
  • Brick Wedged, Sloped 4 x 2 Triple Left Red Part 43710 Element 6431121 or 6293751 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Right Red Part 43711 Element 6431123 or 6293750 ×1
  • Hinge Brick 1 x 2 Base Red Part 3937 Element 393721 ×2
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Red Part 30365 Element 4173322 or 3036521 ×2
  • Hinge Brick 1 x 2 Top Plate Thin Red Part 3938 Element 6534944 or 6078079 ×2
  • Hinge Brick 2 x 2 Locking with 1 Finger Vertical and Axle Hole [X Opening] Red Part 30389c ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Red Part 44301a Element 4183039 ×4
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Red Part 44302a Element 6249371 or 6074865 ×6
  • Plate 1 x 2 Red Part 3023 Element 302321 ×5
  • Plate 1 x 4 Red Part 3710 Element 371021 ×2
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×4
  • Plate 2 x 4 Red Part 3020 Element 302021 ×7
  • Technic Brick 1 x 1 with Pin Hole Red Part 6541 Element 654121 ×4
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 ×4
  • Wedge Plate 4 x 2 Left Red Part 41770 Element 4161329 ×2
  • Wedge Plate 4 x 2 Right Red Part 41769 Element 4160866 ×2
  • Wedge Plate 7 x 6 Boat Bow with Stud Notches Red Part 50303 Element 6566729 or 4234447 ×2

Dark Bluish Gray 115 pieces

  • Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×2
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×8
  • Brick 2 x 2 Dark Bluish Gray Part 3003 Element 4211060 ×2
  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 ×3
  • Brick 2 x 6 Dark Bluish Gray Part 2456 Element 4282819 or 4210875 ×2
  • Brick Sloped 18° 4 x 2 Dark Bluish Gray Part 30363 Element 4210637 ×8
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Dark Bluish Gray Part 3747a Element 4500464 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×1
  • Brick Special 1 x 1 with Studs on 2 Sides Dark Bluish Gray Part 47905 Element 4213574 ×4
  • Brick Special 1 x 4 with 4 Studs on One Side Dark Bluish Gray Part 30414 Element 4210725 ×4
  • Brick Wedged, Sloped 4 x 2 Triple Left Dark Bluish Gray Part 43710 Element 4210866 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Right Dark Bluish Gray Part 43711 Element 4210867 ×1
  • Brick Wedged, Sloped 4 x 4 Triple, Stud Notches Dark Bluish Gray Part 48933 Element 6356488 or 4225873 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Dark Bluish Gray Part 44301a Element 4210883 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Dark Bluish Gray Part 30383 Element 6265693 or 4210726 ×8
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Dark Bluish Gray Part 44567a Element 4210892 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Dark Bluish Gray Part 44302a Element 4210884 ×14
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×8
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 Also in Black ×1
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×2
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×2
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 Also in Black ×2
  • Plate 2 x 16 Dark Bluish Gray Part 4282 Element 4210796 ×1
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×4
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×4
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Vertical Side] Dark Bluish Gray Part 48171 Element 6492115 or 6343337 ×6
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Socket Dark Bluish Gray Part 48169 Element 6278974 or 4225973 ×10
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×5

Tan 104 pieces

  • Brick 1 x 6 Tan Part 3009 Element 4112982 or 300905 ×2
  • Brick Curved 6 x 1 Tan Part 42022 Element 4624701 or 4160389 ×1
  • Brick Curved Inverted 6 x 1 Tan Part 42023 Element 6495042 or 6030729 ×5
  • Brick Round 1 x 1 Open Stud Tan Part 3062b Element 4117070 or 306205 ×2
  • Brick Sloped 45° 2 x 1 Double with Ovoid Bottom Pin Tan Part 3044b Element 4109996 or 304405 ×8
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Tan Part 3747a ×1
  • Brick Sloped Inverted 45° 2 x 1 Tan Part 3665 Element 4159196 or 366505 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Tan Part 3660 Element 4118866 ×5
  • Brick Sloped Inverted 45° 4 x 4 Double with 4 x 2 Recessed Tan Part 4854 Element 4180341 or 4113996 ×1
  • Brick Special 1 x 1 with Studs on 2 Sides Tan Part 47905 Element 4213568 ×1
  • Brick Wedged, Angled 4 x 2 Left Tan Part 41768 Element 4160345 ×2
  • Brick Wedged, Angled 4 x 2 Right Tan Part 41767 Element 6394212 or 4160327 ×2
  • Brick Wedged, Curved Inverted 6 x 2 Left Tan Part 41765 Element 4161277 ×2
  • Brick Wedged, Curved Inverted 6 x 2 Right Tan Part 41764 Element 4161262 ×2
  • Cone 1 x 1 [No Top Groove] Tan Part 4589 Element 4520958 or 4129997 ×3
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Tan Part 44302a Element 4518449 or 4183064 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Tan Part 73983 Element 6102772 or 4227507 ×2
  • Plate 1 x 1 Tan Part 3024 Element 4159553 or 302405 ×2
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×5
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×3
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×1
  • Plate 1 x 6 Tan Part 3666 Element 4124067 or 366605 ×2
  • Plate 2 x 3 Tan Part 3021 Element 4118790 or 302105 ×9
  • Plate Special 1 x 1 with Tooth Tan Part 49668 Element 4224793 ×23
  • Plate Special 2 x 2 with Pin on Bottom Tan Part 2476a Element 4237088 ×4
  • Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction Tan Part 47455 Element 6629410 or 4217983 ×10

Reddish Brown 48 pieces

  • Brick 2 x 6 Reddish Brown Part 2456 Element 4286200 or 4216615 ×1
  • Brick Curved Inverted 6 x 1 Reddish Brown Part 42023 Element 6528972 or 6175581 ×2
  • Brick Sloped 18° 4 x 2 Reddish Brown Part 30363 Element 4225869 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Reddish Brown Part 3660 Element 4211221 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Reddish Brown Part 44567a Element 4185619 ×5
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Reddish Brown Part 44302a Element 4521427 or 4518450 ×5
  • Plate 1 x 1 Reddish Brown Part 3024 Element 4221744 ×4
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×8
  • Plate 1 x 3 Reddish Brown Part 3623 Element 4211152 ×4
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×3
  • Plate 1 x 6 Reddish Brown Part 3666 Element 4221590 ×2
  • Plate 4 x 4 Reddish Brown Part 3031 Element 4243838 or 4225868 ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Reddish Brown Part 3794a ×4
  • Wedge Plate 4 x 2 Left Reddish Brown Part 41770 Element 4205470 ×1
  • Wedge Plate 4 x 2 Right Reddish Brown Part 41769 Element 4205469 ×1
  • Wedge Plate 4 x 4 Cut Corner Reddish Brown Part 30503 Element 4224732 ×2

Dark Orange 22 pieces

  • Brick Curved 6 x 1 Dark Orange Part 42022 Element 6610299 or 4224731 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Orange Part 3040b Element 6069259 or 4224730 ×1
  • Brick Sloped 45° 2 x 2 Dark Orange Part 3039 Element 6248859 or 6115261 ×1
  • Plate 1 x 2 Dark Orange Part 3023 Element 4570877 or 4162217 ×1
  • Plate 1 x 4 Dark Orange Part 3710 Element 6074892 or 4603740 ×5
  • Plate 2 x 2 Dark Orange Part 3022 Element 4615606 or 4603741 ×1
  • Plate 2 x 3 Dark Orange Part 3021 Element 6359717 or 6224275 ×5
  • Plate 2 x 4 Dark Orange Part 3020 Element 4535928 or 4164449 ×2
  • Wedge Plate 8 x 4 Wing Left Dark Orange Part 3933 Element 4224789 ×2
  • Wedge Plate 8 x 4 Wing Right with Stud Notch Dark Orange Part 3934 Element 4224787 ×2

White 22 pieces

  • Plate Special 1 x 1 with Tooth White Part 49668 Element 6601935 or 4224792 ×22

Black 15 pieces

  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×2
  • Plate 1 x 3 Black Part 3623 Element 362326 Also in Dark Bluish Gray ×1
  • Plate 1 x 8 Black Part 3460 Element 346026 Also in Dark Bluish Gray ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 ×4
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 ×5
  • Technic Axle Pin with Friction Ridges Lengthwise Black Part 43093 Element 4184170 or 4168884 ×2

Blue 15 pieces

  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 ×15

Light Bluish Gray 13 pieces

  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End Light Bluish Gray Part 30364 Element 4211693 ×1
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Light Bluish Gray Part 30365 Element 4211694 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Light Bluish Gray Part 44301a Element 4211803 ×5
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×1
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top] Light Bluish Gray Part 48170 Element 4226637 ×4

Trans-Green 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 ×3

Trans-Red 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×3

Trans-Neon Green 2 pieces

  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Neon Green Part 41669 Element 4163577 ×2

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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